View clinical trials related to Coronary Artery Bypass.
Filter by:The long saphenous vein is traditionally harvested for use as a conduit in coronary artery bypass grafting surgery. Currently, the long saphenous vein is not imaged prior to surgery. This study aims to evaluate preoperative ultrasound mapping of the long saphenous vein to to improve patient and clinical outcomes.
The purpose of this study is to determine whether acadesine is effective in reducing the cardiovascular and cerebrovascular adverse events in high-risk participants undergoing CABG surgery.
For some people who have heart by-pass surgery, the vein that is used to by-pass a blockage will, after some time, become narrowed and possibly blocked. AVI-5126 blocks a gene that is believed to be responsible for the events in the blood vessel that cause this narrowing. Therefore, exposing the vein to AVI-5126 before it is attached to the coronary artery may result in less problems with these vein grafts later on. This study will determine if this procedure is both safe and effective.
Blood glucose levels increase in response to stress, infection or other conditions faced by patients in the hospital. This occurs commonly among patients with known diabetes, but also among non-diabetic hospitalized patients. Tight glucose control, the maintenance of blood glucose levels within normal limits (80-120 mg/dl), has been shown to improve patient outcomes in the hospital in several settings, mainly among critically ill patients hospitalized in intensive care units. We plan to assess the importance of tight glucose control during open-heart surgery. The prevalence of hyperglycemia (elevated blood glucose) during this operation is high. Hyperglycemia may be associated with increased vulnerability to surgical site infections, neurological damage, cardiac and renal injury. Conversely, tight glucose control may be associated with hypoglycemia (pathologically low glucose levels) that may results in neurological injury. We hypothesize that tight glucose control will improve patient outcomes following surgery.
Roughly thirty percent of people that undergo open heart surgery get an abnormal heart beat afterwards known as atrial fibrillation (AF). While not life threatening, this abnormal heart beat increases the likelihood of stroke and delays recovery. There are strategies to prevent post-operative AF, but they are costly and sometimes have undesirable side effects. Therefore, it would be best if we use these preventive treatments only in high risk patients. We intend to develop a risk prediction model based on demographic and electrocardiogram (ECG) findings that will predicted who is likely to get AF. We will develop this model using data already available on patients who have undergone cardiac surgery. The development of this model will use the latest mathematical algorithms similar to those used to study genetic evolution. This type of model is capable of looking at many parameters in an unbiased way, so that only the strongest, independent predictors remain in the final model. Once, the model is developed, we will validate the model by comparing our predictions to actual outcomes previously recorded in the database.
The purpose of this study is to investigate the effect of high and moderate intensity exercise training after coronary bypass surgery. The subjects are randomised to training at either 60-70% or 85-95% of their maximal capacity daily for four weeks. Primary outcome measure is change in maximal aerobic capacity, measured as change in maximal oxygen consumption, after the training period. Secondary outcome measures are change in quality of life, heart rate variability, ultrasound measures of the heart and blood variables, including endothelian markers.